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authorGustavo A. R. Silva <garsilva@embeddedor.com>2017-07-07 08:29:58 +0300
committerMark Brown <broonie@kernel.org>2017-07-07 15:42:03 +0300
commit2f2472baa66ef9a6aa25124cb07679bbe613ceff (patch)
tree93518a72aee34f642dc06656bd523444b228d2da /drivers
parent8d67f64f7739464c352d4b167ed1748f3b2c1f44 (diff)
downloadlinux-2f2472baa66ef9a6aa25124cb07679bbe613ceff.tar.xz
regulator: qcom_rpm-regulator: add NULL check on of_match_device() return value
Check return value from call to of_match_device() in order to prevent a NULL pointer dereference. In case of NULL print error message and return. Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/regulator/qcom_rpm-regulator.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/regulator/qcom_rpm-regulator.c b/drivers/regulator/qcom_rpm-regulator.c
index 1b2acc43fea1..88dc0b0f003c 100644
--- a/drivers/regulator/qcom_rpm-regulator.c
+++ b/drivers/regulator/qcom_rpm-regulator.c
@@ -959,6 +959,11 @@ static int rpm_reg_probe(struct platform_device *pdev)
}
match = of_match_device(rpm_of_match, &pdev->dev);
+ if (!match) {
+ dev_err(&pdev->dev, "failed to match device\n");
+ return -ENODEV;
+ }
+
for (reg = match->data; reg->name; reg++) {
vreg = devm_kmalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
if (!vreg)